Online courses directory (19947)

Circular flow of income and expenditure. Gross domestic product. Introduction to Economics. Circular Flow of Income and Expenditures. Parsing Gross Domestic Product. More on Final and Intermediate GDP Contributions. Investment and Consumption. Income and Expenditure Views of GDP. Components of GDP. Examples of Accounting for GDP. Real GDP and Nominal GDP. GDP Deflator. Example Calculating Real GDP with a Deflator. Introduction to Economics. Circular Flow of Income and Expenditures. Parsing Gross Domestic Product. More on Final and Intermediate GDP Contributions. Investment and Consumption. Income and Expenditure Views of GDP. Components of GDP. Examples of Accounting for GDP. Real GDP and Nominal GDP. GDP Deflator. Example Calculating Real GDP with a Deflator.

Inflation and deflation. CPI-U. Real and nominal return. Phillips Curve. Introduction to Inflation. Actual CPI-U Basket of Goods. Inflation Data. Real and Nominal Return. Calculating Real Return in Last Year Dollars. Relation Between Nominal and Real Returns and Inflation. Deflation. Velocity of Money Rather than Quantity Driving Prices. Deflation Despite Increases in Money Supply. Moderate Inflation in a Good Economy. Stagflation. Deflationary Spiral. Hyperinflation. Unemployment Rate Primer. Phillips Curve. Introduction to Inflation. Actual CPI-U Basket of Goods. Inflation Data. Real and Nominal Return. Calculating Real Return in Last Year Dollars. Relation Between Nominal and Real Returns and Inflation. Deflation. Velocity of Money Rather than Quantity Driving Prices. Deflation Despite Increases in Money Supply. Moderate Inflation in a Good Economy. Stagflation. Deflationary Spiral. Hyperinflation. Unemployment Rate Primer. Phillips Curve.

Find out how the heart and circulatory system work in the fetus!. Meet the Placenta!. Umbilical vessels and the Ductus Venosus. Flow through the Heart. Hypoxic Pulmonary Vasoconstriction. Foramen Ovale and Ductus Arteriosus. Fetal Hemoglobin and Hematocrit. Double Bohr Effect. Fetal Circulation Right Before Birth. Baby Circulation Right After Birth. Fetal Structures in an Adult. Meet the Placenta!. Umbilical vessels and the Ductus Venosus. Flow through the Heart. Hypoxic Pulmonary Vasoconstriction. Foramen Ovale and Ductus Arteriosus. Fetal Hemoglobin and Hematocrit. Double Bohr Effect. Fetal Circulation Right Before Birth. Baby Circulation Right After Birth. Fetal Structures in an Adult.

Using definite integrals with the shell and disc methods to find volumes of solids of revolution. Disk method around x-axis. Generalizing disc method around x-axis. Disc method around y-axis. Disc method (washer method) for rotation around x-axis. Generalizing the washer method. Disc method rotation around horizontal line. Washer method rotating around non-axis. Part 2 of washer for non axis rotation. Disc method rotating around vertical line. Calculating integral disc method around vertical line. Washer or ring method for vertical line rotation. Evaluating integral for washer method around vertical line. Shell method for rotating around vertical line. Evaluating integral for shell method example. Shell method for rotating around horizontal line. Shell method with two functions of x. Calculating integral with shell method. Shell method with two functions of y. Part 2 of shell method with 2 functions of y. Disc method: function rotated about x-axis. Disc method (rotating f(x) about x axis). Volume of a sphere. Disc method with outer and inner function boundaries. Shell method to rotate around y-axis. Disk method: rotating x=f(y) around the y-axis. Shell method around a non-axis line. Shell method around a non-axis line 2. Disk method around x-axis. Generalizing disc method around x-axis. Disc method around y-axis. Disc method (washer method) for rotation around x-axis. Generalizing the washer method. Disc method rotation around horizontal line. Washer method rotating around non-axis. Part 2 of washer for non axis rotation. Disc method rotating around vertical line. Calculating integral disc method around vertical line. Washer or ring method for vertical line rotation. Evaluating integral for washer method around vertical line. Shell method for rotating around vertical line. Evaluating integral for shell method example. Shell method for rotating around horizontal line. Shell method with two functions of x. Calculating integral with shell method. Shell method with two functions of y. Part 2 of shell method with 2 functions of y. Disc method: function rotated about x-axis. Disc method (rotating f(x) about x axis). Volume of a sphere. Disc method with outer and inner function boundaries. Shell method to rotate around y-axis. Disk method: rotating x=f(y) around the y-axis. Shell method around a non-axis line. Shell method around a non-axis line 2.

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Limit introduction, squeeze theorem, and epsilon-delta definition of limits. Introduction to limits. Limit at a point of discontinuity. Determining which limit statements are true. Limit properties. Limit example 1. Limits 1. One-sided limits from graphs. One-sided limits from graphs. Introduction to Limits. Limit Examples (part 1). Limit Examples (part 2). Limit Examples (part 3). Limit Examples w/ brain malfunction on first prob (part 4). More Limits. Limits 1. Limits and infinity. Limits at positive and negative infinity. More limits at infinity. Limits with two horizontal asymptotes. Limits 2. Squeeze Theorem. Proof: lim (sin x)/x. Limit intuition review. Building the idea of epsilon-delta definition. Epsilon-delta definition of limits. Proving a limit using epsilon-delta definition. Limits to define continuity. Continuity. Epsilon Delta Limit Definition 1. Epsilon Delta Limit Definition 2. Introduction to limits. Limit at a point of discontinuity. Determining which limit statements are true. Limit properties. Limit example 1. Limits 1. One-sided limits from graphs. One-sided limits from graphs. Introduction to Limits. Limit Examples (part 1). Limit Examples (part 2). Limit Examples (part 3). Limit Examples w/ brain malfunction on first prob (part 4). More Limits. Limits 1. Limits and infinity. Limits at positive and negative infinity. More limits at infinity. Limits with two horizontal asymptotes. Limits 2. Squeeze Theorem. Proof: lim (sin x)/x. Limit intuition review. Building the idea of epsilon-delta definition. Epsilon-delta definition of limits. Proving a limit using epsilon-delta definition. Limits to define continuity. Continuity. Epsilon Delta Limit Definition 1. Epsilon Delta Limit Definition 2.

Divergence theorem intuition. Divergence theorem examples and proofs. Types of regions in 3D. 3-D Divergence Theorem Intuition. Divergence Theorem Example 1. Why we got zero flux in Divergence Theorem Example 1. Type I Regions in Three Dimensions. Type II Regions in Three Dimensions. Type III Regions in Three Dimensions. Divergence Theorem Proof (part 1). Divergence Theorem Proof (part 2). Divergence Theorem Proof (part 3). Divergence Theorem Proof (part 4). Divergence Theorem Proof (part 5). 3-D Divergence Theorem Intuition. Divergence Theorem Example 1. Why we got zero flux in Divergence Theorem Example 1. Type I Regions in Three Dimensions. Type II Regions in Three Dimensions. Type III Regions in Three Dimensions. Divergence Theorem Proof (part 1). Divergence Theorem Proof (part 2). Divergence Theorem Proof (part 3). Divergence Theorem Proof (part 4). Divergence Theorem Proof (part 5).

Watch fun, educational videos on all sorts of Physics questions. Thomas Young's Double Slit Experiment. Newton's Prism Experiment. Bridge Design and Destruction! (part 1). Bridge Design (and Destruction!) Part 2. Shifts in Equilibrium. The Marangoni Effect: How to make a soap propelled boat!. The Invention of the Battery. The Forces on an Airplane. Bouncing Droplets: Superhydrophobic and Superhydrophilic Surfaces. A Crash Course on Indoor Flying Robots. Heat Transfer. Thomas Young's Double Slit Experiment. Newton's Prism Experiment. Bridge Design and Destruction! (part 1). Bridge Design (and Destruction!) Part 2. Shifts in Equilibrium. The Marangoni Effect: How to make a soap propelled boat!. The Invention of the Battery. The Forces on an Airplane. Bouncing Droplets: Superhydrophobic and Superhydrophilic Surfaces. A Crash Course on Indoor Flying Robots. Heat Transfer.

Sal working through the 53 problems from the practice test available at http://www.cde.ca.gov/ta/tg/hs/documents/mathpractest.pdf for the CAHSEE (California High School Exit Examination). Clearly useful if you're looking to take that exam. Probably still useful if you want to make sure you have a solid understanding of basic high school math. CAHSEE Practice: Problems 1-3. CAHSEE Practice: Problems 4-9. CAHSEE Practice: Problems 10-12. CAHSEE Practice: Problems 13-14. CAHSEE Practice: Problems 15-16. CAHSEE Practice: Problems 17-19. CAHSEE Practice: Problems 20-22. CAHSEE Practice: Problems 23-27. CAHSEE Practice: Problems 28-31. CAHSEE Practice: Problems 32-34. CAHSEE Practice: Problems 35-37. CAHSEE Practice: Problems 38-42. CAHSEE Practice: Problems 43-46. CAHSEE Practice: Problems 47-51. CAHSEE Practice: Problems 52-53. CAHSEE Practice: Problems 1-3. CAHSEE Practice: Problems 4-9. CAHSEE Practice: Problems 10-12. CAHSEE Practice: Problems 13-14. CAHSEE Practice: Problems 15-16. CAHSEE Practice: Problems 17-19. CAHSEE Practice: Problems 20-22. CAHSEE Practice: Problems 23-27. CAHSEE Practice: Problems 28-31. CAHSEE Practice: Problems 32-34. CAHSEE Practice: Problems 35-37. CAHSEE Practice: Problems 38-42. CAHSEE Practice: Problems 43-46. CAHSEE Practice: Problems 47-51. CAHSEE Practice: Problems 52-53.

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This topic continues our journey through the world of Euclid by helping us understand angles and how they can relate to each other. Angle basics. Measuring angles in degrees. Using a protractor. Measuring angles. Measuring angles. Acute right and obtuse angles. Angle types. Vertical, adjacent and linearly paired angles. Exploring angle pairs. Introduction to vertical angles. Vertical angles. Using algebra to find the measures of vertical angles. Vertical angles 2. Proof-Vertical Angles are Equal. Angles Formed by Parallel Lines and Transversals. Identifying Parallel and Perpendicular Lines. Figuring out angles between transversal and parallel lines. Congruent angles. Parallel lines 1. Using algebra to find measures of angles formed from transversal. Parallel lines 2. CA Geometry: Deducing Angle Measures. Proof - Sum of Measures of Angles in a Triangle are 180. Triangle Angle Example 1. Triangle Angle Example 2. Triangle Angle Example 3. Challenging Triangle Angle Problem. Proof - Corresponding Angle Equivalence Implies Parallel Lines. Finding more angles. Angles 1. Angles 2. Sum of Interior Angles of a Polygon. Angles of a polygon. Sum of the exterior angles of convex polygon. Introduction to angles (old). Angles (part 2). Angles (part 3). Angles formed between transversals and parallel lines. Angles of parallel lines 2. The Angle Game. Angle Game (part 2). Acute right and obtuse angles. Complementary and supplementary angles. Complementary and supplementary angles. Example using algebra to find measure of complementary angles. Example using algebra to find measure of supplementary angles. Angle addition postulate. Angle basics. Measuring angles in degrees. Using a protractor. Measuring angles. Measuring angles. Acute right and obtuse angles. Angle types. Vertical, adjacent and linearly paired angles. Exploring angle pairs. Introduction to vertical angles. Vertical angles. Using algebra to find the measures of vertical angles. Vertical angles 2. Proof-Vertical Angles are Equal. Angles Formed by Parallel Lines and Transversals. Identifying Parallel and Perpendicular Lines. Figuring out angles between transversal and parallel lines. Congruent angles. Parallel lines 1. Using algebra to find measures of angles formed from transversal. Parallel lines 2. CA Geometry: Deducing Angle Measures. Proof - Sum of Measures of Angles in a Triangle are 180. Triangle Angle Example 1. Triangle Angle Example 2. Triangle Angle Example 3. Challenging Triangle Angle Problem. Proof - Corresponding Angle Equivalence Implies Parallel Lines. Finding more angles. Angles 1. Angles 2. Sum of Interior Angles of a Polygon. Angles of a polygon. Sum of the exterior angles of convex polygon. Introduction to angles (old). Angles (part 2). Angles (part 3). Angles formed between transversals and parallel lines. Angles of parallel lines 2. The Angle Game. Angle Game (part 2). Acute right and obtuse angles. Complementary and supplementary angles. Complementary and supplementary angles. Example using algebra to find measure of complementary angles. Example using algebra to find measure of supplementary angles. Angle addition postulate.

Hank Green teaches you ecology!. The History of Life on Earth. Population Ecology: The Texas Mosquito Mystery. Human Population Growth. Community Ecology: Feel the Love. Community Ecology II: Predators. Ecological Succession: Change is Good. Ecosystem Ecology: Links in the Chain. The Hydrologic and Carbon Cycles: Always Recycle!. Nitrogen and Phosphorus Cycles: Always Recycle!. 5 Human Impacts on the Environment. Pollution. Conservation and Restoration Ecology. The History of Life on Earth. Population Ecology: The Texas Mosquito Mystery. Human Population Growth. Community Ecology: Feel the Love. Community Ecology II: Predators. Ecological Succession: Change is Good. Ecosystem Ecology: Links in the Chain. The Hydrologic and Carbon Cycles: Always Recycle!. Nitrogen and Phosphorus Cycles: Always Recycle!. 5 Human Impacts on the Environment. Pollution. Conservation and Restoration Ecology.

Hank Green teaches you biology!. Why Carbon is a Tramp. Water - Liquid Awesome. Biological Molecules - You Are What You Eat. Eukaryopolis - The City of Animal Cells. In Da Club - Membranes & Transport. Plant Cells. ATP & Respiration. Photosynthesis. Heredity. DNA Structure and Replication. DNA, Hot Pockets, & The Longest Word Ever. Mitosis: Splitting Up is Complicated. Meiosis: Where the Sex Starts. Natural Selection. Speciation: Of Ligers & Men. Animal Development: We're Just Tubes. Evolutionary Development: Chicken Teeth. Population Genetics: When Darwin Met Mendel. Taxonomy: Life's Filing System. Evolution: It's a Thing. Comparative Anatomy: What Makes Us Animals. Simple Animals: Sponges, Jellies, & Octopuses. Complex Animals: Annelids & Arthropods. Chordates. Animal Behavior. The Nervous System. Circulatory & Respiratory Systems. The Digestive System. The Excretory System: From Your Heart to the Toilet. The Skeletal System: It's ALIVE!. Big Guns: The Muscular System. Your Immune System: Natural Born Killer. Great Glands - Your Endocrine System. The Reproductive System: How Gonads Go. Old & Odd: Archaea, Bacteria & Protists. The Sex Lives of Nonvascular Plants. Vascular Plants = Winning!. The Plants & The Bees: Plant Reproduction. Fungi: Death Becomes Them. Ecology - Rules for Living on Earth. Why Carbon is a Tramp. Water - Liquid Awesome. Biological Molecules - You Are What You Eat. Eukaryopolis - The City of Animal Cells. In Da Club - Membranes & Transport. Plant Cells. ATP & Respiration. Photosynthesis. Heredity. DNA Structure and Replication. DNA, Hot Pockets, & The Longest Word Ever. Mitosis: Splitting Up is Complicated. Meiosis: Where the Sex Starts. Natural Selection. Speciation: Of Ligers & Men. Animal Development: We're Just Tubes. Evolutionary Development: Chicken Teeth. Population Genetics: When Darwin Met Mendel. Taxonomy: Life's Filing System. Evolution: It's a Thing. Comparative Anatomy: What Makes Us Animals. Simple Animals: Sponges, Jellies, & Octopuses. Complex Animals: Annelids & Arthropods. Chordates. Animal Behavior. The Nervous System. Circulatory & Respiratory Systems. The Digestive System. The Excretory System: From Your Heart to the Toilet. The Skeletal System: It's ALIVE!. Big Guns: The Muscular System. Your Immune System: Natural Born Killer. Great Glands - Your Endocrine System. The Reproductive System: How Gonads Go. Old & Odd: Archaea, Bacteria & Protists. The Sex Lives of Nonvascular Plants. Vascular Plants = Winning!. The Plants & The Bees: Plant Reproduction. Fungi: Death Becomes Them. Ecology - Rules for Living on Earth.

Start your own robotics project with Spout, Spider, and Bit-zee!. 3rd graders build robots at Santa Rita Elementary School. See inside Spout's motors and switches. Spout 1. Spout 2. Spout 3. Spout 4. Spout 5. Spout 6. Spout 7. Spout 8. Spout 9. Spout 10. Spout 11. 6th graders learn to build a Spider robot. Parts list for Spider. 1 Spider parts and tools. 2 Hacking Spider's click n' stick. 3 Creating the battery and motor mounts for Spider. 4 Attach Spider's click n' stick base to the batteries and thread his wires. 5 Attach Spider's motor controller and wire his motors. 6 Connect Spider's power switch and run the power wires to the motor controller. 7 Attach and adjust the Spider's bezel. 8 Attach Spider's wheels. 9 Make the connnectors for Spider's Arduino Nano. 10 Spider Connect the power and signal wires from the motor controller to the Arduino. 11 Attach Spider's LED eyes. 12 Connect Spider's stablizer bar. 13 Spider's Romance. 14 Teaching Spider to dance. 15 Ben Eater's Spider Bot. 1. Bit-zee. 2. Bit-zee (long version). 3. Bit-zee Bot Introduction. 4. Bit-zee planning and propulsion. 5. Bit-zee's bits. 6. Bit-zee's chassis/frame. 7. Bit-zee's wheel mounts and fenders. 8. Bit-zee's component mounting holes. 9. Bit-zee's batteries. 10. Improving the battery wires. 11. Connecting Bit-zee's power wires and on-off switch. 12. Bit-zee's motors. 13. Why does Bit-zee need a motor controller?. 14. Bit-zee's motor controller. 15. Attaching and wiring Bit-zee's motor controller. 16. Attaching Bit-zee's Arduino. 17. How to hotwire a digital camera. 18. Attaching Bit-zee's digital camera. 19. Bit zee's 5 Volt power distribution board. 20. Hacking and attaching a digital recorder/player to Bit-zee. 21. Making a power connector for the Arduino. 22. Attaching Bit-zee's prototype board. 23. Connecting the motor controller to the Arduino. 24. Connecting Bit-zee's camera to the Arduino. 25. Bit-zee's bumper switches. 26. Bit-zee's eyes. 27. Bit-zee's IR sensor. 28. Bit-zee's shell. 29. Camera wiring update. 30. Load the Code for It-zee and Bit-zee. 1 Spout Introduction. 2 Attach Spout's lever switches and motors. 3 Attach Spout's wires and connectors. 4 Attach Spout's sliding switches and resistors. 5 Connect Spout's antenna. 6 Attach Spout's LED eyes. See inside Spout's motors and switches. 3rd graders build robots at Santa Rita Elementary School. See inside Spout's motors and switches. Spout 1. Spout 2. Spout 3. Spout 4. Spout 5. Spout 6. Spout 7. Spout 8. Spout 9. Spout 10. Spout 11. 6th graders learn to build a Spider robot. Parts list for Spider. 1 Spider parts and tools. 2 Hacking Spider's click n' stick. 3 Creating the battery and motor mounts for Spider. 4 Attach Spider's click n' stick base to the batteries and thread his wires. 5 Attach Spider's motor controller and wire his motors. 6 Connect Spider's power switch and run the power wires to the motor controller. 7 Attach and adjust the Spider's bezel. 8 Attach Spider's wheels. 9 Make the connnectors for Spider's Arduino Nano. 10 Spider Connect the power and signal wires from the motor controller to the Arduino. 11 Attach Spider's LED eyes. 12 Connect Spider's stablizer bar. 13 Spider's Romance. 14 Teaching Spider to dance. 15 Ben Eater's Spider Bot. 1. Bit-zee. 2. Bit-zee (long version). 3. Bit-zee Bot Introduction. 4. Bit-zee planning and propulsion. 5. Bit-zee's bits. 6. Bit-zee's chassis/frame. 7. Bit-zee's wheel mounts and fenders. 8. Bit-zee's component mounting holes. 9. Bit-zee's batteries. 10. Improving the battery wires. 11. Connecting Bit-zee's power wires and on-off switch. 12. Bit-zee's motors. 13. Why does Bit-zee need a motor controller?. 14. Bit-zee's motor controller. 15. Attaching and wiring Bit-zee's motor controller. 16. Attaching Bit-zee's Arduino. 17. How to hotwire a digital camera. 18. Attaching Bit-zee's digital camera. 19. Bit zee's 5 Volt power distribution board. 20. Hacking and attaching a digital recorder/player to Bit-zee. 21. Making a power connector for the Arduino. 22. Attaching Bit-zee's prototype board. 23. Connecting the motor controller to the Arduino. 24. Connecting Bit-zee's camera to the Arduino. 25. Bit-zee's bumper switches. 26. Bit-zee's eyes. 27. Bit-zee's IR sensor. 28. Bit-zee's shell. 29. Camera wiring update. 30. Load the Code for It-zee and Bit-zee. 1 Spout Introduction. 2 Attach Spout's lever switches and motors. 3 Attach Spout's wires and connectors. 4 Attach Spout's sliding switches and resistors. 5 Connect Spout's antenna. 6 Attach Spout's LED eyes. See inside Spout's motors and switches.

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